145044980 has 18 divisors (see below), whose sum is σ = 304707606. Its totient is φ = 57996448.

The previous prime is 145044919. The next prime is 145044997. The reversal of 145044980 is 89440541.

It is a happy number.

145044980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 7639696 + 137405284 = 2764^2 + 11722^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 145044980.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52514 + ... + 55206.

Almost surely, 2^145044980 is an apocalyptic number.

145044980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145044980 is an abundant number, since it is smaller than the sum of its proper divisors (159662626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145044980 is an frugal number, since it uses more digits than its factorization.

145044980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5395 (or 2700 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 145044980 is about 12043.4621268139. The cubic root of 145044980 is about 525.4131049394.

The spelling of 145044980 in words is "one hundred forty-five million, forty-four thousand, nine hundred eighty".